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Nanoscale Mapping of Magnetic Auto-Oscillations with a Single Spin Sensor.
Nano Lett
January 2025
Max Planck Institute for Solid State Research, Heisenbergstr. 1, Stuttgart, 70569, Germany.
Spin Hall nano-oscillators convert DC to magnetic auto-oscillations in the microwave regime. Current research on these devices is dedicated to creating next-generation energy-efficient hardware for communication technologies. Despite intensive research on magnetic auto-oscillations within the past decade, the nanoscale mapping of those dynamics remained a challenge.
View Article and Find Full Text PDFFunctional safety-oriented hazard analysis and risk assessment for vehicular fuel cell systems.
Heliyon
January 2025
Beijing SinoHytec Co., Ltd., Zhongguancun, Dongsheng S & T Park, 66 Xixiaokou Road, Beijing 100192, China.
Functional safety is an emerging trend for safety design in the automobile industry. This study is an innovative exploration of a hazard analysis and quantitative risk assessment (QRA) methodology based on the functional safety of vehicular fuel cell systems. In this study, the potential hazards that fuel cell vehicles may encounter during operation were identified using the automobile generic hazard list.
View Article and Find Full Text PDFCompositional Differences of Various Sorption States of Cu and Cd on Goethite in the Presence of Oxyanions: A Quantitative Study.
Langmuir
January 2025
School of Environment and Energy, South China University of Technology, Guangzhou 510006, People's Republic of China.
The anionic species of antimony(V) and phosphate(V) are commonly found in the contaminated soil of mining areas, exerting a significant influence on the sorption of heavy metals and thus affecting their migration. This study quantitatively discussed the sorption mechanism of Sb and P in promoting the sorption of Cd or Cu on goethite through a series of extraction methods. In the single sorption system, the majority of Cu (87-98%) is adsorbed on goethite in the form of EDTA-extractable Cu (EF Cu, possibly inner-sphere complexes) under pH conditions of 3.
View Article and Find Full Text PDFEstablishing thresholds for swing transparency at the knee during gait to inform exoskeleton design.
PLoS One
January 2025
Department of Mechanical Engineering, Vanderbilt University, Nashville, TN, United States of America.
Knee exoskeletons have been developed to assist, stabilize, or improve human movement or recovery. However, exoskeleton designers must implement transparency (i.e.
View Article and Find Full Text PDFSouth African parents' views on oral, signing, and bilingual communication for Deaf or hard-of-hearing children.
Afr J Disabil
December 2024
Department of Audiology, Faculty of Human and Community Development, University of the Witwatersrand, Braamfontein, South Africa.
Background: Parents of Deaf or hard-of-hearing (DHH) children are faced with a plethora of overwhelming decisions concerning their children, particularly during the early stages of development. Among these decisions are those concerning assistive devices and the modes of communication for their child.
Objectives: The aim of this study was to explore the perceptions of parents of DHH children towards the various modes of communication for their children within the South African context.
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